DC network
    2.
    发明授权

    公开(公告)号:US11978601B2

    公开(公告)日:2024-05-07

    申请号:US17608769

    申请日:2020-03-12

    摘要: Various embodiments of the teachings herein include a DC network comprising: an electrical conductor; a switching unit arranged at one end of the conductor to break the electrical connection via the conductor, the switching unit including a controllable power semiconductor connected in series in the current path of the conductor; wherein the conductor includes a first section and a second section starting from the switching unit with a connection point between the first section and the second section; a first overvoltage protection apparatus connected between the connecting point and a second pole of the DC network; and a second overvoltage protection apparatus connected between that end of the second section remote from the switching unit and the second pole. The overvoltage protection apparatuses each have a capacitor.

    SYSTEM AND METHOD FOR CONTROLLING DIRECT CURRENT BUS VOLTAGE

    公开(公告)号:US20240128745A1

    公开(公告)日:2024-04-18

    申请号:US18398776

    申请日:2023-12-28

    IPC分类号: H02J1/06

    CPC分类号: H02J1/06

    摘要: A system for controlling a direct current bus voltage includes a controller and an inverter. The controller is configured to: obtain a power grid voltage; obtain a maximum sampling value of a direct current bus voltage of the inverter when the power grid voltage jumps, where the maximum sampling value of the direct current bus voltage is a maximum voltage value on the direct current bus in a time period for detecting a power grid voltage jump; obtain a first direct current bus voltage reference value based on the maximum sampling value of the direct current bus voltage; and obtain a second direct current bus voltage reference value based on the first direct current bus voltage reference value and a preset first rising gradient value, to limit a rising rate of the direct current bus voltage.

    DC Network
    5.
    发明公开
    DC Network 审中-公开

    公开(公告)号:US20230253170A1

    公开(公告)日:2023-08-10

    申请号:US17608769

    申请日:2020-03-12

    摘要: Various embodiments of the teachings herein include a DC network comprising: an electrical conductor; a switching unit arranged at one end of the conductor to break the electrical connection via the conductor, the switching unit including a controllable power semiconductor connected in series in the current path of the conductor; wherein the conductor includes a first section and a second section starting from the switching unit with a connection point between the first section and the second section; a first overvoltage protection apparatus connected between the connecting point and a second pole of the DC network; and a second overvoltage protection apparatus connected between that end of the second section remote from the switching unit and the second pole. The overvoltage protection apparatuses each have a capacitor.